1 // Copyright (C) 2024 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "VkEmulatedPhysicalDeviceQueue.h" 16 17 #include <algorithm> 18 #include <limits> 19 20 namespace gfxstream { 21 namespace vk { 22 EmulatedPhysicalDeviceQueueProperties(const std::vector<VkQueueFamilyProperties> & host,const gfxstream::host::FeatureSet & features)23EmulatedPhysicalDeviceQueueProperties::EmulatedPhysicalDeviceQueueProperties( 24 const std::vector<VkQueueFamilyProperties>& host, const gfxstream::host::FeatureSet& features) { 25 mQueueFamilyProperties = host; 26 27 // Override queueCount for the virtual queue to be provided with device creations 28 mHasVirtualGraphicsQueue = features.VulkanVirtualQueue.enabled; 29 if (mHasVirtualGraphicsQueue) { 30 // This feature will enforce multiple queues on all graphics capable phsical queues 31 // by creating a virtual queue object, which forwards the work streams into the 32 // underlying host queue. 33 // This feature will override queue properties and handling even if the host device 34 // supports multiple graphics queues to reduce divergence. 35 for (VkQueueFamilyProperties& qfp : mQueueFamilyProperties) { 36 if (qfp.queueFlags & VK_QUEUE_GRAPHICS_BIT) { 37 qfp.queueCount = 2; 38 } 39 40 // TODO(b/329845987) Protected memory is not supported yet on emulators. 41 qfp.queueFlags &= ~VK_QUEUE_PROTECTED_BIT; 42 } 43 } 44 } 45 46 } // namespace vk 47 } // namespace gfxstream